00:00
3
6
4
9
2
8
7
1
9
6
5
6
2
7
8
1
3
9
6
8
4
8
4
1
6
4
6
5
2
8
4
2024-08-01(Intermediate) Puzzles
Tackle slightly complex patterns
Look at the whole board to decide where to proceed.
Tips for Solving Sudoku
- Start with squares with fewer numbers: Begin with rows, columns, or blocks that already have more numbers filled; fewer candidates make it easier to solve.
- Pencil marks (notes): For beginners, write possible numbers in small font in empty squares for reference.
- Review: If stuck, check for duplicate numbers or rule violations.
- Basic rule: Do not repeat the same number in the same row, column, or 3x3 block.